CTG SW11 BR STEEL WORK NOZZLES

Transcription

1 CTG SW11 BR STEEL WORK NOZZLES

2 INTRODUCTION INDEX CONTINUOUS CASTING Page 1 Hydraulic nozzles / full cone nozzles 2 Hydraulic nozzles / flat jet 4 Air assisted atomizers 6 ROLLING MILL 10 Descaling nozzles / classic 11 Descaling nozzles / high impact 13 Roll cooling nozzles 17 Cold mill nozzles 18 GENERAL APPLICATIONS Coke oven nozzles 19 Furnace gas cooling lances 20 Air blowers 20 TECHNICAL PUBLICATIONS PNR manufactures a complete range of spray nozzles for industrial application, and several products and systems based on spray technology. Our complete product range is described by the following cutalogues: PRODUCT RANGE GENERAL PURPOSE SPRAY NOZZLES AIR ASSISTED ATOMIZERS COMPLEMENTARY PRODUCTS AND ASSEMBLY FITTINGS INDUSTRIAL TANK WASHING SYSTEMS EVAPORATIVE COOLING LANCES SPRAYDRY NOZZLES STEELWORK NOZZLES CTG TV 10 BR CTG UG 14 BR CTG AZ 15 BR CTG AC15 BR CTG LS 15 BR CTG LN 15 BR CTG SP 10 BR CTG SW 11 BR Our technical publications are continuously updated, and mailed to Customers whose name and address are registered into our Catalogue Mailing List. We shall gladly register your name, if you mail to the nearest PNR office the form on page 21, duly filled with the required information. NOTES Our products are continuously reconsidered and modified to keep up with the latest state of technology. We regret not to be able to give our Customers previous advice about these modifications: for this reason the data and product specifications given in this Catalogue are to be understood as indications, and do not engage our Company. In case your application should imperatively, require that one or more characteristics of one of our products is strictly maintained, we ask you to obtain a written confirmation about your requirements before sending your order. All information contained into this Catalogue, including product data, product codes, diagrams and photographs are the exclusive property of Flowtech Srl. It is formally forbidden to reproduce any part of this Catalogue without having obtained written permission of Flowtech Srl. Dimensions in this Catalogue are given in mm. All threads are manufactured according to the ISO 259 standards (European norms BS DIN UNI 338). Explanations about the abbreviations used in the Catalogue are given at page 21. All trademarks are the property of their respective owners.

3 CONTINUOUS CASTING PRODUCT CHOICE The products shown in this Catalogue are those commonly choosen for most continuous casting applications, Additional types are shown in our Catalogue CTG UG14 BR for general purpose spray nozzles for industrial processes. Because of the number of casters we supply, we manufacture a wide additional variety of nozzles which are not included in our standard range and replace nozzles supplied by other manufacturers. We shall gladly quote you nozzles not included in this Catalogue, if given operating specifications about the Product you need. HYDRAULIC NOZZLES Our range of hydraulic nozzles, which has proven to be cost effective on continuous casting operations and is widely used worldwide, consists of the following nozzle types. Male thread full cone nozzles, X-vane type Our DB style, wide internal passages, cost effective and widely used in many plants. DB nozzles are normally available from stock or with short delivery times, at suitable prices. Female thread full cone nozzles, disc vane type Our AH style, very well known in the industry for being a simple construction, with good resistance to clogging and excellent water spray distribution, assure very uniform cooling processes. Standard and slit type flat jet tips With a narrow spray pattern flat jet tips are ideal to assure proper cooling in such places like foot rollers or in the bending and straightening sections. The wide range of water capacities assures that the proper nozzle for any installation is available. PRODUCT QUALITY We keep tight controls on our manufacturing process in order to deliver quality products, but the care we put into our work does not stop here. We want our products to give the best possible performance when assembled into your system, and for this reason we have selected and designed our packing materials so that our products reach their destination without damage due to handling, transportation and stocking. Page 1

4 CONTINUOUS CASTING FULL CONE NOZZLES / DISC VANE WS RF H AH AH nozzles produce a full cone spray pattern, with a very uniform liquid distribution over the entire coverage area. The special design of the internal vane, which do not show any small dimension passage, assures for an excellent resistance to clogging. Based on the above two features, AH series nozzles are widely used in continuous casting plants all over the world and have supplied years of trouble-free service. Material Thread brass only 3/8 female BSP Nozzle code RF D Nozzle flow values (lpm) H WS at different pressure values (bar) AHR 1309 xx 1/4 1,9 1,8 2,5 3,1 3,6 4,1 25,0 19 AHR 1362 xx 2,0 2,3 3,0 3,6 4,2 4,7 AHR 1409 xx 2,2 2,4 3,3 4,1 5,9 6,7 AHR 1517 xx 2,6 3,0 4,3 5,2 5,9 6,7 AHR 1207 xx 3/8 1,0 1,2 1,7 2,1 2,4 2,7 27,0 22 AHR 1310 xx 1,9 1,8 2,5 3,1 3,6 4,1 AHR 1340 xx 2,0 1,9 2,8 3,4 3,9 4,4 AHR 1363 xx 2,1 2,1 2,9 3,6 4,2 4,7 AHR 1415 xx 2,2 2,4 3,4 4,1 4,8 5,3 AHR 1470 xx 1,5 2,7 3,8 4,7 5,4 6,0 AHR 1518 xx 2,6 3,0 4,2 5,2 6,0 6,7 AHR 1621 xx 2,7 3,5 5,0 6,2 7,2 8,0 AHR 1780 xx 2,9 4,5 6,4 7,8 9,0 10,0 AHR 1828 xx 3,1 4,8 6,8 8,3 9,6 10,7 AHR 1873 xx 3,3 5,0 7,2 8,7 10,2 11,4 AHR 2110 xx 1/2 4,2 6,5 9,1 11,0 12,7 14,2 36,0 27 AHR 2144 xx 4,2 8,0 11,7 14,4 16,6 18,5 AHR 2154 xx 5,0 8,8 12,6 15,4 18,0 20,0 80 AHT 1309 xx 1/4 2,2 1,8 2,5 3,1 3,6 4,1 25,0 19 AHT 1362 xx 2,2 2,3 3,0 3,6 4,2 4,7 AHT 1409 xx 2,2 2,4 3,3 4,1 4,7 5,3 AHT 1517 xx 2,6 3,0 4,3 5,2 5,9 6,7 AHT 1310 xx 3/8 2,0 1,8 2,5 3,1 3,6 4,1 27,0 22 AHT 1340 xx 2,0 1,9 2,8 3,4 3,9 4,4 AHT 1363 xx 2,1 2,1 2,9 3,6 4,2 4,7 AHT 1415 xx 2,2 2,4 3,4 4,1 4,8 5,3 AHT 1518 xx 2,6 3,0 4,2 5,2 6,0 6,7 AHT 1621 xx 2,7 3,5 5,0 6,2 7,2 8,0 AHT 1780 xx 2,9 4,5 6,4 7,8 9,0 10,0 AHT 1828 xx 3,1 4,8 6,8 8,3 9,6 10,7 AHT 1873 xx 3,3 5,0 7,2 8,7 10,2 11,4 AHT 2110 xx 1/2 4,2 6,5 9,1 11,0 12,7 14,2 36,0 27 AHT 2144 xx 4,2 8,0 11,7 14,4 16,6 18,5 DISC VANE The special design of this vane uses a series of peripheral passages to create the whirl action into the water flowing through the nozzle. A series of milled grooves on the lower side of the vane, facing the inside of the whirl chamber, acts as an hydrodinamic brake over the fluid whirling at the center of the chamber, and provides for an evenly distributed full cone spray pattern. All vanes are secured in place, so as not to exit from the nozzle body in case of dimensional change induced by high operation temperature. Page 2

5 CONTINUOUS CASTING FULL CONE NOZZLES / X-VANE Ø 11 3/8 21,5 27 BX BJ BX & BJ A typical continuous casting type, available as a nozzle tip or a female thread connection, BX and BJ series equip many casters around the world. They offer the same working specifications as the DB series nozzles, with the added flexibility of nipple-and-cap or female thread assembly. BJ nozzles are also available in a variety of spray angles and flow rates, in addition to the types listed below. X VANE X vanes are a very popular design in steelworks as well as in many other industrial processes. Their simple design is based on two sloping flats which induce a whirl action into the fluid going through the nozzle, and two small slots cut into each flat to allow the full cone pattern to form correctly. All vanes are secured in place, so as not to exit from the nozzle body in case of dimensional change induced by high operation temperature. Material BJ BX Brass Nozzle D Nozzle capacity (lpm) code at different pressure values (bar) T T T T T T T DB series hydraulic nozzles are widely used in the first cooling zone of continuous casting machines, with overlapping patterns to minimize temperature gradients and reduce the risk of crack formation. Their simple two-piece construction, body and internal vane, good resistance to clogging, moderate price and short delivery times make them an excellent choice for the steelwork engineer. 1/4 BSPT Material Thread Brass, Aisi 303 & 316 stainless steel 1/4 & 3/8 Male BSPT DB DBW DBU DBQ Nozzle D D1 Nozzle flow values (lpm) code at different pressure values (bar) 0, xx 1,8 1,3 1,2 1,7 2,4 2,9 3,4 3,8 1370xx 2,05 1,4 1,5 2,1 3,0 3,7 4,3 4,8 1470xx 2,4 1,9 1,9 2,7 3,8 4,7 5,4 6,1 1588xx 2,6 2 2,4 3,4 4,8 5,9 6,8 7,6 1659xx 2,7 2 2,7 3,8 5,4 6,6 7,6 8,5 1740xx 2,9 2 3,0 4,3 6,0 7,4 8,5 9,6 1835xx 3,3 1,9 3,4 4,8 6,8 8,4 9,6 10,8 1835xx 3,3 1,9 3,4 4,8 6,8 8,4 9,6 10,8 1940xx 3,3 1,9 3,8 5,4 7,7 9,4 10,9 12,1 2105xx 3,6 2,3 4,3 6,1 8,6 10,6 12,2 13,7 CODE ANGLE DBQ 60 DBU90 DBW 120 Page 3

6 CONTINUOUS CASTING FLAT JET NOZZLE TIPS / SMALL SIZE DIA 14,7 GX 8 10 These flat jet tips are the choice for those continuous casting machine sections where only limited space is available between two rollers. They offer a parabolic distribution and a finely atomized spray providing uniform coverage. Material Connection Brass, Aisi 303 & 316 stainless steel Cap & Nipple, several threads possiblel CODE ANGLE GXQ 60 GXU90 GXW 120 GXW GXU GXQ Nozzle D Nozzle flow values (lpm) code at different pressure values (bar) 1,0 1,5 2,0 3,0 4,0 5,0 7,0 10,0 1190xx 1,5 1,10 1,34 1,55 1,90 2,19 2,45 2,90 3, xx 1,65 1,35 1,65 1,90 2,33 2,69 3,01 3,56 4, xx 2,0 1,79 2,19 2,53 3,10 3,58 4,00 4,74 5, xx 2,2 2,11 2,58 2,98 3,65 4,21 4,71 5,58 6, xx 2,5 2,83 3,46 4,00 4,90 5,66 6,33 7,48 8, xx 2,7 3,35 4,11 4,74 5,81 6,71 7,50 8,87 10,6 1780xx 3,0 4,50 5,52 6,37 7,80 9,01 10,1 11,9 14,2 1980xx 3,5 5,66 6,93 8,00 9,80 11,3 12,7 15,0 17,9 2124xx 4,0 7,16 8,77 10,1 12,4 14,3 16,0 18,9 22,6 2153xx 4,5 8,83 10,8 12,5 15,3 17,7 19,8 23,4 27,9 2194xx 5,0 11,2 13,7 15,8 19,4 22,4 25,0 29,6 35,4 2245xx 5,5 14,1 17,3 20,0 24,5 28,3 31,6 37,4 44,7 HOW TO COMPOSE THE NOZZLE CODE The nozzle tips shown on this page can be supplied with different spray angles, whose value is indicated by the third digit in the nozzle code. Therefore the tip code has to be specified as in the following. GXQ 1780 B3 60 deg spray VAA 0038 GX ZAA 1738 ACCESSORIES A wide range of accessories for assembling GX tips is shown in our Catalogue CTG AC14 BR. For continuous casting applications we recommend ZAA welding nipples and VAA series locknuts. The available codes for th e d i f f e r e n t s p r a y angles are indicated in the above of the page. Page 4

7 CONTINUOUS CASTING 26,5 FLAT JET NOZZLES / SLIT TYPE 38 GV Size 1 Size 2 Slit flat jet tips offer a very wide coverage width, while their thin flat spray can be used in machines with limited space between rollers. They offer a remarkably even distribution and an inside profile which greatly reduces the danger of clogging, with finely atomized spray providing uniform coverage even with narrow gaps between rollers. They are assembled by means of a specific locknut. Material Connection Brass only 1 BSP female cap SIZE 1 SIZE 2 GVV GVU GVT Nozzle Capacities (lpm) code at different pressure values (bar) T T T T T T T T T T Ø WS 40 1 GAS LOCKNUT GV style nozzles are fixed by means of their specific locknut VAC 0100 T1, which can be ordered separately as a spare part. Nozzles with capacity codes equal or higher than 2300 are fitted with an additional body lip, which makes it impossible to slip the nozzle inside the locknut. They are therefore delivered with a locknut which is pre-assemled at the factory. Page 5

8 CONTINUOUS CASTING AIR ASSISTED ATOMIZERS A development of recent years, air assisted atomizers have found wide acceptance in the continuous casting machines because of some advantages, which make them the best choice in some applications. High resistance to clogging An air assisted atomizer can deliver low water capacities and do so with large inside passages. Higher heat transfer rates By producing a finely atomized air-water mixture excellent heat transfer can be achieved with lower water volumes per unit weight of steel. Even cooling at different machine speeds Even cooling means better surface and edge quality, less cracks and less scrap. And this is possible for a wide range of dimensions and alloys, because of the wider turndown ratio of an air atomizer as compared to an hydraulic nozzle. Longer roll life Water is not only sprayed in lower quantity, not only better evaporated because of the lower droplet dimensions, but also the little quantity not evaporated is also easily driven away from the slab, which extends roll life. Page 6

9 CONTINUOUS CASTING STANDARD AIR ATOMIZERS / BODY STYLES ATOMIZER COMPOSITION Air atomizers are composed by a choice of different set-ups, which determine the spray pattern, the spray angle and the nozzle capacity, and different assembly bodies which allow connecting the atomizer to the water and air feed manifolds. ASSEMBLY BODIES There is a variety of possible designs for assembly bodies, depending upon the atomizer connections and the design of feed manifolds in the single continuous casting machines. Most current designs are shown at page 9, while we deliver any possible assembly body according to customer requirement. Atomizer body families are available for different spray patterns Full cone spray pattern Flat jet atomizers Long nose flat jet atomizers / MP / MR / MS (quoted on request) SET-UP CODING Since set-ups are available as spare parts, they are identified by their own coding, which is shown in the tables at page 8, where the set-up operating specification is given. The set-up coding consists of two first digit (SA,SB) which identify the product as a set-up, followed by other alphanumeric coding which identifies the spray angle and capacity. As an example the set-up code SAU 3276 identifies - a full cone set-up (SA) - a spray angle of 90 (U) - a capacity figure (3276) OPERATING DIAGRAMS Since the typical regulation of these atomizers is made by means of water pressure changes, while the air pressure is kept at a fixed value, all diagrams are obtained for a given value of air pressure. CAPACITY COMPLETE ATOMIZER CODE The complete code for an atomizer is then obtained by addition of the atomizer type, of the set-up code without the first two digits, and of the specific body stile suffix. Hence a flat jet atomizer ( MR ), assembled with a set-up SAU 3248 T1 and with a B body style, will be then identified by the code MR U 3248 T1 B Flat jet body set-up code Body style The capacity tables serve as a guidance only, to define the basic operation range. Each atomizer is supplied with a set of operation diagrams, which allow for precise definition of all the conditions for any desired operation point in the atomizer range. SPRAY COVERAGE In addition to capacity diagrams we supply diagrams showing the width of the spray coverage at different water pressure values and for fixed air pressure values. Page 7

10 CONTINUOUS CASTING AIR ATOMIZERS / SET-UP TABLES FULL CONE SET-UPS Full cone atomizers are preferably used for machines casting billets and show therefore a range of low water capacities, with spray angles between 30 and 90 degrees. A = Air flow (Ncm/h) W = water flow (lpm) Air pressures (bar) Code W A W A W A SAF SAQ SAU SAU ATOMIZER SET-UPS The atomizer set-ups determines the basic performances of the atomizer, that is spray angle, water capacity and air capacity. The assembly of a given set-up onto one of the different bodies available makes a complete atomizer. Material Normally delivered in brass, both body and set-up can be quoted in Aisi 303 and 316 stainless steel Water pressure (bar) 2,0 2,5 3,0 FLAT JET SET-UPS Flat jet set-ups can offer a wider spray coverage, and therefore they can be used in several applications ranging from billets to blooms and slabs production. For the widest coverage requirement, double atomizer bodies are available. Air pressures (bar) Code W A W A W A SBQ SBQ SBQ SBU SBU SBU SBW SBW SBW Water pressure (bar) 2,0 2,5 3,0 Page 8

11 CONTINUOUS CASTING ATOMIZER BODIES Several different atomizers bodies are available for the assembly of atomizer set-ups. In the following the most current body styles are shown, we can however manufacture any kind of atomizer bodies to suit specific application cases, including double jet atomizer bodies FULL CONE ATOMIZERS - XMP XMP 1A00 T1 FLAT JET ATOMIZERS - XMR XMR 1B00 T Ø XMR 1D00 T XMR 1G00 T1 Page 9

12 ROLLING MILL GW GW series nozzles have been the European standard for many years in the field of hot descaling mills. The introduction of the hard metal insert and the nozzle orientation assured by the dove-tail coupling between nozzle tip and nipple have allowed for increased efficiency in the descaling process and higher steel quality, while careful studies on the nozzle inner profile have assured improved results for jet impact and evenness of water jet distribution. HW The continuous demand for higher efficiency has originated in recent years an increase in the descaling pressure values, which are today easily exceeding the 200 bar line. The descaling nozzle assembly has been consequently entirely reconsidered, with new designs to take into account primarily the need of higher efficiency, while some inconveniences in the old designs have been eliminated. HW type nozzle tips and accessories achieve therefore a streamlined inside profile, which results in lower energy losses due to turbulence and hence higher impact values on the steel surface. In addition they offer a number of advantages like easy assembly operation and watertight connection between nipple and nozzle. Page 10

13 ROLLING MILL NOZZLE TIPS / CLASSIC DESCALER 22 Ø 28 GW CODE ANGLE GWE 26 GWF 30 GWL 40 For a long time the worldwide standard in hot descaling of steel strips, they have undergone sensible improvements, specially on the inner orifice profile which assures a very even distribution of the water jet impact onto the steel surface. Their typical design with a dove-tail coupling between nipple and nozzle tip assures for fail-proof correct alignement of the nozzles onto the spray manifold. Several nipples and a specific locknut assure for a wide choice of different assembly dimensions. Material C1 Aisi 420 (hardened) F1 Aisi 303 & tungsten Carbide spraytip GWL GWF GWE Nozzle D D1 Capacity (lpm) code at different pressure values (bar) xx xx xx xx xx xx xx xx Page 11

14 ROLLING MILL ASSEMBLY PARTS / CLASSIC DESCALER 1 BSP 120 ZB NIPPLES ZB series nipples have been designed for the assembling of GW descaling tips onto descaling plants main manifolds. The accurately machined dove-tail profile assures for precise alignement of the nozzle tip with respect to the axis of the spray manifold, while a precision machined surface prevents leakage between nipple and nozzle tip. ZB nipples are available in three different length to match different dimensional requirements. Material Aisi 316 ZBC Ø 43 Code L RG W (mm) (gr) ZBB 0100 B ZBC 0100 B ZBD 0100 B BSP 50 VAA 0100 B1 The VAA 0100 B1 cap is designed for the proper assembly between ZB nipples and GW descaling nozzle tips. The strong design assures for a safe operation under the high pressure values typically used in hot descaling mill systems. Material Aisi 303 stainless steel ZBD Ø 33 1 BSP 40 ZBB Ø 27 1 BSP 39 WS 41 VAA 0100 B1 Ø 20,2 Page 12

15 ROLLING MILL NOZZLE TIPS / FULL SIZE CODE ANGLE HWE 26 HWF 30 HWL 40 53,5 HW Ø 28 The water path amont of the nozzle orifice has been completely redesigned in order to keep turbulent losses as low as possible, all sharp cross section changes have been eliminated with the result of a significant increase in water velocity at the nozzle orifice. The nozzle efficiency is further enhanced by a carefully designed flow stabilizer, which minimizes turbulence due to sharp flow direction change at the feed inlet from the main manifold. Finally a filter can be mounted at the nipple inlet, to avoid nozzle orifice to be clogged / damaged by foreign particles. Materials C1 Aisi 420 (hardened) F1 Tungsten carbide tip & 303 stainless steel body HWL HWF HWE Code Capacity (lpm) at different pressure values (bar) xx AK 18,0 21,3 22,8 24,0 25, xx AK 28,0 33,0 35,4 37,5 39, xx AK 45,0 53,0 57,0 60,0 63, xx AK 72,0 85,0 91,0 96, xx AK 89, xx AK xx AK xx AK Complete code Codes including the several options available as follows Code HWE 1234 XX AK HWE 1234 XX CK HWE 1234 XX DK Assembly bare nozzle nozzle with flow stabilizer nozzle with filter & flow stabilizer Page 13

16 ROLLING MILL ASSEMBLY PARTS / FULL SIZE Ø 44,5 L WELDING NIPPLES HW nozzles can be assembled on a series of three different nipples, with the same inlet and three different lengths. The precision machined nipple inlet port assures precise positioning of the nozzle flat jet to the specified offset angle value of 15 with regard to the manifold center line. This makes it possible to obtain uniform impact distribution and better descaling results. ZWB RF Material Aisi 304 Stainless steel Code RF L W (mm) (kg) ZWB 0073 B ,49 ZWB 0100 B ,71 ZWB 0120 B ,85 Ø 21,5 L L FLOW STABILIZER The flow stabilizer is the critical component for a perfect descaling job, since it maximizes the impact force on the surface to be descaled, for a given condition. The codes beside always include the multifin flow improver (XHW DL00 B3). Material Nozzle inlet T1 Brass Filter T1 Brass Flow stabilizer B3 Aisi 316 stainless steel M18x1 M18x1 Code Assy Weight Notes length (kg) (mm) XHW DG 10 T without filter XHW DG 13 T without filter XHW DG 20 T with filter XHW DG 21 T with filter XHW DG 22 T with filter XHW DL00 B3 VAW D100 B1 WS 41 1 BSP Ø 20,2 28 LOCKNUT The locknut for ZWB series descaling nipples has been designed profiting from a long experience on the field. The sturdy design and the generous dimensions give the maximum protection to the nozzle and the nipple thread, so as to avoid such abrasion wear who often occur in the rolling mill. One locknut size fits all the ZWB series nipples, for any length. Material B1 Aisi 303 stainless steel 2 Ø 29 Ø 24,5 SEAL The round seal provides proper assembly between nozzle and nipple. One size fits all nipple types. Material T3 Copper XHW DE00 T3 Page 14

17 ROLLING MILL NOZZLE TIPS / SMALL SIZE 53,5 HW Ø 24 Small size nozzle tips also feature a new inside profile completely redesigned in order to keep turbulent losses as low as possible : all sharp cross section changes have been eliminated with the result of is significantly higher water velocity at the orifice. The performances are further enhanced by a flow stabilizer, abating turbulence inducted by the sharp change of flow direction when the water flow leaves the main manifold to enter the nipple. Finally a filter can be mounted at the nipple inlet, to avoid nozzle orifice to be clogged / damaged by foreign particles. Materials C1 Aisi 420 (hardened) F1 Tungsten carbide tip & 303 stainless steel body HWL HWF HWE Code Capacity (lpm) at different pressure values (bar) xx AB 18,0 21,3 22,8 24,0 25, xx AB 28,0 33,0 35,4 37,5 39, xx AB 45,0 53,0 57,0 60,0 63, xx AB 72,0 85,0 91,0 96, xx AB 89, xx AB xx AB xx AB Complete code Codes including the several options available as follows Code HWE 1234 XX AB HWE 1234 XX CB HWE 1234 XX DB Assembly bare nozzle nozzle with flow stabilizer nozzle with filter & flow stabilizer Page 15

18 ROLLING MILL ASSEMBLY PARTS / SMALL SIZE ZWB Ø 32 RF Code RF L W (mm) L WELDING NIPPLES HW nozzles can be assembled on a series of three different nipples, with the same inlet and three different lengths. The precision machined nipple inlet port assures precise positioning of the nozzle flat jet to the specified offset angle value of 15 with regard to the manifold center line. This makes it possible to obtain uniform impact distribution and better descaling results. Material Aisi 304 Stainless steel ZWB 0032 B2 3/4 32 0,08 ZWB 0039 B2 3/4 39 0,10 ZWB 0080 B2 3/4 80 0,23 Ø 21,5 L L FLOW STABILIZER The flow stabilizer is the critical component for a perfect descaling job, since it maximizes the impact force on the surface to be descaled, for a given condition. The codes beside always include the multifin flow improver (XHW DL00 B3). M16x1 Code Assy Weight Notes length (kg) (mm) M16x1 Material Nozzle inlet T1 Brass Filter T1 Brass Flow stabilizer B3 Aisi 316 stainless steel XHW BG 10 T without filter XHW BG 21 T with filter XHW BG 22 T with filter XHW DL00 B3 VAW B075 B1 WS 32 3/4 BSP Ø 20,2 28 LOCKNUT The locknut for ZWB series descaling nipples has been designed profiting from a long experience on the field. The sturdy design and the generous dimensions give the maximum protection to the nozzle and the nipple thread, so as to avoid such abrasion wear who often occur in the rolling mill. One locknut size fits all the ZWB series nipples, for any length. Material B1 Aisi 303 stainless steel 2 Ø 25 Ø 19,5 SEAL The round seal provides proper assembly between nozzle and nipple. One size fits all nipple types. XHW BE00 T3 Material T3 Copper Page 16

19 ROLLING MILL ROLL COOLING NOZZLES 19 Ø 23,8 GY Proper roll cooling assures uniform strip thickness, and requires even water coverage. The even spray distribution of the GY series tips avoids sudden temperature changes and consequent expansion or contraction, which results in the need for roll re-grinding. The final result of a proper roll cooling is then a more even roll wear, longer life, longer production runs with more consistent steel quality. Material T1 Brass B1 Aisi 303 Stainless steel GYQ GYM GYF GYC Nozzle Capacity (lpm) code at different pressure values (bar) xx xx xx xx xx xx xx xx xx xx ASSEMBLY PARTS See our catalogue CTG AC14 BR for welding nipples and locknuts. ZAC NIPPLES Page 17

20 ROLLING MILL COLD ROLLING MILL LUBRICATION DIA 14, GX Lubrication of steel strip after cold rolling must be performed by the spray of very low quantities of lubricant, with an outstanding uniform spray distribution. Pnr low-flow flat jet tips, manufactured by high precision machine tools, assure very small tolerance on nozzle capacity and perfect spray pattern. Material Aisi 303 & 316 (See chart below) GXJ GXV GXT GXR Nozzle Nozzle flow values (lpm) code at different pressure values (bar) 0, xx - - 0,05 0,06 0,08 0,10 0, xx - - 0,08 0,10 0,13 0,15 0, xx - - 0,11 0,13 0,16 0,20 0, xx - 0,10 0,13 0,15 0,20 0,25 0, xx - 0,11 0,16 0,20 0,25 0,30 0, xx - 0,15 0,21 0,26 0,33 0,40 0, xx - 0,23 0,32 0,39 0,51 0,60 0, xx - 0,34 0,48 0,59 0,76 0,90 1, xx 0,32 0, ,78 1,00 1,20 1, xx 0,48 0,68 0,97 1,20 1,50 1,80 2, xx 0,64 0,91 1,30 1,60 2,00 2,40 2,90 MATERIAL BRASS AISI AISI 316 ASSEMBLY PARTS Small capacity GX flat jet tips can be easily assembled by means of our standard welding nipples in the ZAA series and matching VAA 0038 caps. See our Accessories Catalogue CTG AC14 BR. ZLA NIPPLES VAA 0038 XX Page 18

21 GENERAL APPLICATION COKE OVEN NOZZLES D H AF AE are designed for coke quenching processes. Thanks to their very uniform spray distribution, a rapid quench is obtained without hot spots. Their wide chamber and multi-orifice disc shaped vane provide excellent velocity distribution inside the nozzle, which results in a fast and uniform cooling : low values for process water and coke moisture percentage are easily obtained. The wide inside passages exclude the possibility of any clogging danger. Materials B3 Aisi 316 stainless steel G1 Cast Iron Code D1 Nozzle capacity (lpm) Spray Coverage (mm) at pressure values at pressure values (bar) ,5 AFU 4110 xx AFU 4171 xx AFU 4275 xx AFU 4435 xx AFU 4686 xx ADAPTING FLANGES AE nozzles can be supplied complete with an adapting flange for connection to the plant existing piping. Our offices will quote these flanges on request. Ø 350 Ø 390 NOZZLE DIMENSIONS Code D H AFU 4110 xx AFU 4171 xx AFU 4275 xx AFU 4435 xx AFU 4686 xx Page 19

22 GENERAL APPLICATIONS GAS COOLING LANCES Gas cooling lances serve the purpose of cooling furnace gases prior to their inlet inside the ESP (Electrostatic Precipitator). Our Catalogue CTG LN14 BR gives complete information about the gas cooling process and the several types of gas cooling lances. Our offices will be glad to supply any further information and to assist you in the choice of the proper product. UEB L Modern technology offers low-noise and high impact air blowers for satisfying process requirements in many different industries. UE air blowers find several applications in a steelwork for cleaning, cooling and drying applications. The aluminum body and the mild steel cover are given a though electroless nickel coating for excellent protection against steelwork working conditions. Additional types of air blowers can be found in our cataloguie CTG AC14 BR. 25 Material Body Aluminum Top cover Mild steel Code RF Air capacity (Nm 3 /min) H L W IN OUT IN OUT IN OUT IN OUT IN OUT mm mm kg UEB 0150 V1 1/4 0,26 4,70 0,34 6,00 0,42 7,10 0,51 8,60 0,60 10, ,3 UEB 0300 V1 1/4 0,52 9,40 0,68 12,0 0,84 14,2 1,02 17,2 1,20 21, ,7 UEB 0600 V1 1/4 1,03 18,7 1,40 24,0 1,68 28,4 2,04 34,4 2,40 42, ,4 Pressure (bar) 2,0 3,0 4,0 5,0 6,0 UEB airblowers use a small quantity of air (air IN) to entrain ambient air from around the outlet orifice. The resulting air flow produced from the blower is therefore the addition of feed air and entrained air, and is shown in the table as (air OUT) value. Page 20

23 ADDITIONAL INFORMATION ABBREVIATIONS D Equivalent orifice dia mm D1 Smallest nozzle passage mm DI1 Diameter mm DI2 Diameter mm L Length mm RF Female thread - RG Male thread - W Weight g./kg PRODUCT WARRANTY Pnr products will be replaced or repaired, at the option of Pnr and free of charges, if found defective in manufacturing, labeling or packaging. The above warranty conditions will apply if notice of defect is received by Pnr within 30 days from date of product installation or one year from date of shipment. The cost of above said replacement or repair shall be the exclusive remedy for any breach of any warranty, and Pnr shall not be held liable for any damage due to personal injuries or commercial losses coming from product malfunction. Our Company Procedure for warranty requires the following steps: 1 Contact our Quality Manager and obtain from Pnr a return authorization number 2 Return the products together with our form 3DA A04 duly filled 3 We shall issue a test report, send you a copy and return the product (replaced or repaired). Our Company scope is obtaining full Customer satisfaction, and we are fully aware of the inconvenience which can be originated from a defective product. Please be assured we shall do our best to make available a perfect product in the shortest possible time. We also provide, for products which are not defective, a product return policy as follows. PRODUCTS DELIVERED IN ERROR FROM PNR 1 Obtain from Pnr a return authorization number 2 Return the products together with our form duly filled 3 Pnr shall issue a Credit Note for full product and shipping costs. PRODUCTS ORDERED INCORRECTLY TO PNR 1 Obtain from Pnr a return authorization number 2 Return the products, at your expense, together with our form duly filled 3 Products shall be in original conditions, inside the original packing 4 A re-stocking charge of 15% applies. 5 Pnr shall issue a credit note for 85% of the original product cost NON CATALOG PRODUCTS Can only be returned after a quotation from Pnr is obtained. SENDING LIST In order to receive automatically updates of our Catalogues, please photocopy the card below and mail it to any Pnr Office in a sealed envelope. Your details will be recorded into our permanent mailing list. CTG SW11 BR 01 COMPANY SPRAY NOZZLES 02 NAME AIR ASSISTED ATOMIZERS 03 FUNCTION EVAPORATIVE COOLING LANCES 04 ADRESS SPRAYDRY NOZZLES 05 PHONE FAX TANK WASHING SYSTEMS 06 WEB SITE E MAIL ACCESSORIES AND FITTINGS

24 PNR UK LTD 16, Sugarbrook Rd - Aston Fields Ind. Estate BROMSGROVE WORCS B60 3DW Tel. (01527) Fax (01527) spraynozzles@pnr.co.uk CTG SW11 BR Our products are distributed through: PNR America PNR Brasil PNR Italia PNR Asia PNR Czech Republic PNR Mexico PNR Benelux PNR Deutschland PNR U. Kingdom PNR France Argentina Australia Austria Canada Chile Denmark Finland Greece India We are moreover represented in: Indonesia Iran Ireland Japan Slovenia Korea Nepal Norway N. Zealand Pakistan Poland Portugal Singapore South Africa Spain Sweden Taiwan Venezuela